hostage

/ˈhɑstɪdʒ/
noun
  1. A person who is captured and held by someone, usually to force others to do something.
    • The government refused to negotiate with the terrorists who took hostages.
    • During the bank robbery, several customers were taken hostage.
    • The kidnappers held the businessman hostage for a week.
  2. Something that is controlled by outside forces and cannot be freely used or changed.
    • The project became a hostage of the budget cuts.
    • She felt her career was a hostage to her family's needs.
    • The new law held the company's expansion plans hostage to regulatory approval.